ATE97669T1 - METHOD OF PREVENTING CRUST FORMATION IN REACTORS DURING SUSPENSION POLYMERIZATION OF VINYLIDE FLUORIDE. - Google Patents

METHOD OF PREVENTING CRUST FORMATION IN REACTORS DURING SUSPENSION POLYMERIZATION OF VINYLIDE FLUORIDE.

Info

Publication number
ATE97669T1
ATE97669T1 AT90870164T AT90870164T ATE97669T1 AT E97669 T1 ATE97669 T1 AT E97669T1 AT 90870164 T AT90870164 T AT 90870164T AT 90870164 T AT90870164 T AT 90870164T AT E97669 T1 ATE97669 T1 AT E97669T1
Authority
AT
Austria
Prior art keywords
suspension polymerization
during suspension
crust formation
methyl
reactors during
Prior art date
Application number
AT90870164T
Other languages
German (de)
Inventor
Pierre Lasson
Original Assignee
Solvay
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Solvay filed Critical Solvay
Application granted granted Critical
Publication of ATE97669T1 publication Critical patent/ATE97669T1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F14/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
    • C08F14/18—Monomers containing fluorine
    • C08F14/22—Vinylidene fluoride

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polymerisation Methods In General (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

Polymerisation of vinylidene fluoride in an aqueous suspending medium with the use of an oil-soluble initiator of radical polymerisation and in the presence of a suspending agent consisting of a methyl hydroxyethyl cellulose. The use of methyl hydroxyethyl cellulose ensures a substantial lowering in the scaling of the walls of reactors when compared with other cellulose-based suspending agents, such as methyl and methyl hydroxypropyl cellulose, usually recommended for the polymerisation of vinylidene fluoride in an aqueous suspending medium.
AT90870164T 1989-10-09 1990-10-04 METHOD OF PREVENTING CRUST FORMATION IN REACTORS DURING SUSPENSION POLYMERIZATION OF VINYLIDE FLUORIDE. ATE97669T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8913247A FR2652813B1 (en) 1989-10-09 1989-10-09 PROCESS FOR REDUCING CRUSHING OF REACTORS DURING THE POLYMERIZATION OF VINYLIDENE FLUORIDE IN AN AQUEOUS SUSPENSION MEDIUM.
EP90870164A EP0423097B1 (en) 1989-10-09 1990-10-04 Process to inhibit scale in reactors during the aqueous suspension polymerisation of vinylidene fluoride

Publications (1)

Publication Number Publication Date
ATE97669T1 true ATE97669T1 (en) 1993-12-15

Family

ID=9386266

Family Applications (1)

Application Number Title Priority Date Filing Date
AT90870164T ATE97669T1 (en) 1989-10-09 1990-10-04 METHOD OF PREVENTING CRUST FORMATION IN REACTORS DURING SUSPENSION POLYMERIZATION OF VINYLIDE FLUORIDE.

Country Status (6)

Country Link
US (1) US5145921A (en)
EP (1) EP0423097B1 (en)
JP (1) JP3059202B2 (en)
AT (1) ATE97669T1 (en)
DE (1) DE69004775D1 (en)
FR (1) FR2652813B1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7517581B2 (en) 2003-09-26 2009-04-14 Parker-Hannifin Corporation Semipermeable hydrophilic membrane
JP5111855B2 (en) * 2004-10-20 2013-01-09 株式会社クレハ Polyvinylidene fluoride resin powder for melt molding and method for producing a molded body using the resin powder
JP5372765B2 (en) 2007-10-11 2013-12-18 株式会社クレハ Vinylidene fluoride polymer powder and use thereof
WO2012084580A1 (en) 2010-12-22 2012-06-28 Solvay Specialty Polymers Italy S.P.A. Hydrophilic vinylidene fluoride polymers
KR101559153B1 (en) * 2013-12-30 2015-10-13 주식회사 고퍼우드 Tone adjusting device for chordophones
KR101704669B1 (en) * 2016-02-24 2017-02-08 주식회사 고퍼우드 Functional folk guitar
KR101655891B1 (en) * 2016-02-29 2016-09-08 이세강 Manufacturing Method and a guitar ornament
JP7144298B2 (en) * 2018-03-06 2022-09-29 株式会社クレハ Method for producing vinylidene fluoride polymer

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1094558A (en) * 1965-12-10 1967-12-13 Kureha Chemical Ind Co Ltd Polyvinylidene fluoride
US3719651A (en) * 1971-02-01 1973-03-06 Dow Chemical Co Hydroxybutylmethylcellulose as a protective colloid in vinyl monomer polymerization
GB1365590A (en) * 1972-03-09 1974-09-04 Shinetsu Chemical Co Method of suspension polymerizing vinyl chloride
GB1378875A (en) * 1972-09-11 1974-12-27 Bp Chem Int Ltd Polymerisation process
US3781265A (en) * 1972-10-17 1973-12-25 Pennwalt Corp Method of preparing consistently high-quality vinylidene fluoride polymer
DE2528950B2 (en) * 1975-06-28 1979-02-15 Sigma Italiana Prodotti Chimici S.P.A., Bergamo (Italien) Process for the production of polyvinyl chloride
UST953008I4 (en) * 1976-05-17 1976-12-07
US4117216A (en) * 1977-09-02 1978-09-26 The B. F. Goodrich Company Inversion polymerization process for producing vinyl resins
GB2206122A (en) * 1987-06-22 1988-12-29 Aqualon Co Process for preparation of polymers by suspension polymerization of a vinyl monomer in the presence of a hydrophobically modified water-soluble, nonionic cellulose ether polymer in combination with an electrolyte and polymers prepared by same

Also Published As

Publication number Publication date
DE69004775D1 (en) 1994-01-05
EP0423097A1 (en) 1991-04-17
EP0423097B1 (en) 1993-11-24
JP3059202B2 (en) 2000-07-04
US5145921A (en) 1992-09-08
JPH03185007A (en) 1991-08-13
FR2652813A1 (en) 1991-04-12
FR2652813B1 (en) 1993-05-28

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